ADOPTED LEVELS, GAMMAS for 32Ar
Author: Jun Chen | Citation: Nucl. Data Sheets 201, 1 (2025) | Cutoff date: 31-Oct-2024
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-24190 keV SY | S(n)= 21600 keV SY | S(p)= 2455 keV 4 | Q(α)= -8.70×103 keV 16 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 9Be(34Ar,xγ) | B | 9Be(37Ca,xγ) |
| C | 32S(π+,π-) | D | Coulomb Excitation |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) |
| 0 | ABCD | 0+ | 98 ms 2 % ε = 100 % εp = 35.58 22 | |||
| 1855 16 | AB D | 2+ | 0.48 ps +17-10 | 1855 16 | 100 | [E2] |
| 24.7E3 3 | C | (0+,2+) | 4.0 MeV 15 | |||
| 28.7E3 4 | C | (0+,2+) | 3.6 MeV 15 |
T1/2(level): LABEL=T1/2 or Γ
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
| 1855 | 2+ | 0.48 ps +17-10 | 1855 16 | [E2] | B(E2)(W.u.)=8.9 +30-27 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 98 ms 2 % ε = 100 % εp = 35.58 22 | %εp: other: 43 3 (1985Bj01). E(level): %εp: other: 43 3 (1985Bj01). |
| 24.7E3 | (0+,2+) | 4.0 MeV 15 | T=2 E(level): From (π+,π-) (1988Mo15). T1/2(level): From (π+,π-) (1988Mo15). |
| 28.7E3 | (0+,2+) | 3.6 MeV 15 | T=2 E(level): From (π+,π-) (1988Mo15). T1/2(level): From (π+,π-) (1988Mo15). |
| E(level) | E(gamma) | Comments |
| 1855 | 1855 | E(γ): unweighted average of 1867 8 from (34Ar,Xγ), 1824 12 from Coulomb excitation and 1873 20 from (37Ca,Xγ) |
First identification of 32Ar nuclide: 1977Ha29: isotope produced by V(p,X) E=600 MeV, followed by mass separation at ISOLDE-CERN facility.
Mass measurements: 2003Bl17
Mass deduced from IMME analysis: 2021Ka45, 2006Tr03
Other measurements:
2004Ga33: 9Be(32Ar,31ArX) E=65.1 MeV/nucleon. Deduced occupancy of deeply-bound neutron state
2002Oz03: C(32Ar,x) E≈950 MeV/nucleon. Measured interaction cross section, deduced proton skin features.
1985Bj01: 32Ar produced by 40Ca(p,3p6n) reaction at E=600 MeV, followed by mass separation at ISOLDE-CERN facility.
Structure calculations:
2021Li26,2017Ro08,2013Wa05: calculated levels, J, π
2013Le08: calculated B(E2), B(M1)
2008Ba08: calculated B(E1), isovector dipole strength
Q-value: ΔQ(β-)=400, ΔS(n)=200 (syst,2021Wa16)
Q-value: S(2n)=40410 180 (syst), S(2p)=2719.0 18, Q(εp)=9553.2 18 (2021Wa16)